I recently got a Dish Network 722, but found that when turned off there was still either a fan or hard drive operating, making noise and generating some heat. This is when it is totally off, not recording either. After a few weeks a had Dish replace that, but the replacement is doing exactly the same thing. If this were my computer I would say the hard drive is not sleeping fully. Any one else experience this, or have any advice? I can live with it so long as it is not going to prematurely kill the 722.